NBDHE NBDHE Oral Pathology and Disease Recognition 1 — Questions and Answers
Question 1: Which oral lesion is described as a white patch that cannot be wiped off and carries a risk of malignant transformation?
- Candidiasis
- Leukoplakia (Correct answer)
- Aphthous ulcer
- Fibroma
Correct answer: Leukoplakia
Leukoplakia is a white patch that cannot be scraped off and has a recognized risk of malignant transformation.
Question 2: Erythroplakia is clinically significant because it has a higher malignant transformation rate than which lesion?
- Fibroma
- Mucocele
- Leukoplakia (Correct answer)
- Papilloma
Correct answer: Leukoplakia
Erythroplakia carries a significantly higher rate of malignant transformation than leukoplakia and should be biopsied promptly.
Question 3: Oral hairy leukoplakia is caused by which virus and is most commonly seen in immunocompromised patients?
- HPV
- HSV-1
- Epstein-Barr virus (Correct answer)
- Cytomegalovirus
Correct answer: Epstein-Barr virus
Oral hairy leukoplakia is caused by Epstein-Barr virus reactivation and appears as white corrugated lesions on the lateral tongue.
Question 4: A fluid-filled mucosal swelling on the lower lip caused by trauma to a minor salivary gland duct is called a:
- Fibroma
- Mucocele (Correct answer)
- Ranula
- Torus
Correct answer: Mucocele
A mucocele results from mucus accumulation following trauma or obstruction of a minor salivary gland duct, most commonly on the lower lip.
Question 5: The most common benign soft tissue tumor of the oral cavity, typically resulting from chronic irritation, is the:
- Papilloma
- Fibroma (Correct answer)
- Lipoma
- Granuloma
Correct answer: Fibroma
The fibroma is the most common benign oral soft tissue tumor, presenting as a smooth, firm, pink nodule caused by reactive connective tissue proliferation.
Question 6: Geographic tongue is clinically referred to as:
- Hairy tongue
- Fissured tongue
- Benign migratory glossitis (Correct answer)
- Median rhomboid glossitis
Correct answer: Benign migratory glossitis
Geographic tongue, or benign migratory glossitis, presents as irregular erythematous patches with white-yellow borders that migrate across the dorsal tongue.
NBDHE NBDHE Oral Pathology and Disease Recognition 1
Which oral lesion is described as a white patch that cannot be wiped off and carries a risk of malignant transformation?